diff --git a/R/geoflow_provenance.R b/R/geoflow_provenance.R
index 23d8ebe..2049a5c 100644
--- a/R/geoflow_provenance.R
+++ b/R/geoflow_provenance.R
@@ -38,45 +38,43 @@ geoflow_provenance <- R6Class("geoflow_provenance",
      #'@param str character string to initialize a provenance using key-based syntax
      initialize = function(str = NULL){
        if(!is.null(str)){
-         data_props <- extract_cell_components(sanitize_str(str))
-         state_prop <- data_props[[1]]
-         if(!startsWith(state_prop, "statement")){
-           stop("The data 'statement' is mandatory")
-         }
-         state_prop <- unlist(strsplit(state_prop,"statement:"))[2]
-         self$setStatement(state_prop)
-         if(length(data_props)>1){
-           data_props <- data_props[2:length(data_props)]
-           #processes
-           processes <- data_props[sapply(data_props, function(x){startsWith(x, "process:")})]
-           processes <- lapply(processes, function(process){
-             return(extract_kvp(process))
-           })
-           #processors
-           #processors <- data_props[sapply(data_props, function(x){startsWith(x,"processor:")})]
-           #processors_splits <- unlist(strsplit(processors, ":"))
-           #processors <- unlist(strsplit(processors_splits[2],","))
-           #control processors vs. processes
-           #if(length(processors)!=length(processes)){
-           #  stop(sprintf("Number of processors [%s] doesn't match the number of processes [%s]",
-           #               length(processors), length(processes)))
-           #}
-           #if(length(processes)>0 & length(processors)>0 & length(processes)==length(processors)){
-           if(length(processes)>0){     
-             for(i in 1:length(processes)){
-               process <- processes[[i]]$values[[1]]
-               process_obj <- geoflow_process$new()
-               process_des <- attr(process, "description")
-               process_obj$setDescription(process_des)
-               attr(process, "description") <- NULL
-               process_obj$setRationale(process)
-               #processor_obj <- geoflow_contact$new()
-               #processor_obj$setIdentifier(key = "id", processors[i])
-               #processor_obj$setRole("processor")
-               #process_obj$setProcessor(processor_obj)
-               self$addProcess(process_obj)
-             }
-           }
+         strs <- extract_cell_components(sanitize_str(str))
+         kvps <- extract_kvps(strs)
+         
+         #statement
+         statement <- kvps[sapply(kvps, function(kvp){kvp$key == "statement"})]
+         if(length(statement)==0) stop("No provenance statement, statement is mandatory")
+         if(length(statement)>1) warning("More than one provenance statement declared, only the first will be considered!")
+         statement = statement [[1]]
+         self$setStatement(statement$values)
+         
+         #processes
+         processes <- kvps[sapply(kvps, function(kvp){kvp$key == "process"})]
+         if(length(processes)>0){
+            for(process in processes){ #in case processes defined on various lines
+               print(process)
+               process_attrs <- attributes(process$values)
+               for(i in 1:length(process$values)){ #in case processes defined on same line (eg for i18n)
+                  value = if(is.list(process$values)) process$values[[i]] else process$values[i]
+                  process_obj <- geoflow_process$new()
+                  rationale = value
+                  description = process_attrs$description
+                  attributes(rationale) <- NULL
+                  if(is.null(description)) description = attr(value, "description")
+                  if(length(process_attrs)>0){
+                     process_attrs <- process_attrs[names(process_attrs)!="description"]
+                     for(attr_name in names(process_attrs)){
+                        rationale_i18n = process_attrs[[attr_name]][[i]]
+                        attr(description, attr_name) <- attr(rationale_i18n, "description")
+                        attributes(rationale_i18n) = NULL
+                        attr(rationale, attr_name) <- rationale_i18n
+                     }
+                  }
+                  process_obj$setRationale(rationale)
+                  process_obj$setDescription(description)
+                  self$addProcess(process_obj)
+               }
+            }
          }
        }
      },
diff --git a/R/geoflow_utils.R b/R/geoflow_utils.R
index e4b9ad2..8260f42 100644
--- a/R/geoflow_utils.R
+++ b/R/geoflow_utils.R
@@ -132,7 +132,6 @@ extract_kvp <- function(str){
     attributes(key) <- key_attrs
     locale <- key_parts[2]
   }
-  
   return(geoflow_kvp$new(key = key, values = values, locale = locale))
 }
 
@@ -154,12 +153,16 @@ extract_kvps <- function(strs, collapse = NULL){
   kvps <- lapply(strs, function(str){
     kvp <- extract_kvp(str)
     if(!is.null(collapse)) kvp$values <- list(paste0(kvp$values, collapse = collapse))
+    if(length(kvp$values)==1) kvp$values <- kvp$values[[1]]
     return(kvp)
   })
   keys <- unique(sapply(kvps, "[[", "key"))
-  kvps <- lapply(keys, function(key){
+  kvps <- do.call("c", lapply(keys, function(key){
     kvps_for_key <- kvps[sapply(kvps, function(kvp){kvp$key == key})]
-    with_null_locale <- any(sapply(kvps_for_key, function(x){is.null(x$locale)}))
+    with_locales <- any(sapply(kvps_for_key, function(x){!is.null(x$locale)}))
+    if(!with_locales){
+      return(kvps_for_key)
+    }
     kvp_with_default_locale <- kvps_for_key[sapply(kvps_for_key, function(x){is.null(x$locale)})]
     kvp_with_locale <- kvps_for_key[sapply(kvps_for_key, function(x){!is.null(x$locale)})]
     if(length(kvp_with_default_locale)>0){
@@ -168,7 +171,6 @@ extract_kvps <- function(strs, collapse = NULL){
       #TODO support default language in geoflow
     }
     #localization
-    key <- kvp_with_default_locale$key
     #locale key descriptions
     for(kvp in kvp_with_locale){
       if(!is.null(attr(kvp$key, "uri"))) attr(key, paste0("uri#", kvp$locale)) <- attr(kvp$key, "uri")
@@ -177,14 +179,14 @@ extract_kvps <- function(strs, collapse = NULL){
     #locale key uris
     #locale values
     locale_values <- kvp_with_default_locale$values
-    if(length(locale_values)==1) locale_values <- locale_values[[1]]
+    #if(length(locale_values)==1) locale_values <- locale_values[[1]]
     for(item in kvp_with_locale){
       attr(locale_values, paste0("locale#", toupper(item$locale))) <- item$values
     }
     
-    kvp_with_locales <- geoflow_kvp$new(key = key, values = locale_values)
+    kvp_with_locales <- list(geoflow_kvp$new(key = key, values = locale_values))
     return(kvp_with_locales)
-  })
+  }))
   
   return(kvps)
 }
diff --git a/doc/Summary_metadata.csv b/doc/Summary_metadata.csv
index 38e7ef0..66329ed 100644
--- a/doc/Summary_metadata.csv
+++ b/doc/Summary_metadata.csv
@@ -42,8 +42,8 @@
 "Rights","accessConstraint",,,"x",,,,,,"x",,
 "Rights","otherConstraint","x","x","x",,,,,,"x",,
 "Rights","license","x","x","x",,,,,"x","x",,"x"
-"Provenance","statement","x",,"x",,,,,,,,
-"Provenance","process","x",,"x",,,,,,,,
+"Provenance","statement","x","x","x",,,,,,,,
+"Provenance","process","x","x","x",,,,,,,,
 "Format","ressource",,,"x",,,,,,,,
 "Format","distribution",,,"x",,,,,,,,
 "Data",,,,,,,,,,,,
diff --git a/inst/actions/geometa_create_iso_19115.R b/inst/actions/geometa_create_iso_19115.R
index 67ac9b3..6d9ba92 100644
--- a/inst/actions/geometa_create_iso_19115.R
+++ b/inst/actions/geometa_create_iso_19115.R
@@ -826,13 +826,13 @@ function(action, entity, config){
     dq_lineage_scope$setLevel(dctype_iso)
     dq_lineage$setScope(dq_lineage_scope)
     lineage <- ISOLineage$new()
-    lineage$setStatement(entity$provenance$statement)
+    lineage$setStatement(entity$provenance$statement, locales = geoflow::get_locales_from(entity$provenance$statement))
     processes <- entity$provenance$processes
     if(length(processes)>0){
       for(process in processes){
         processStep <- ISOProcessStep$new()
-        processStep$setRationale(process$rationale)
-        processStep$setDescription(process$description)
+        processStep$setRationale(process$rationale, locales = geoflow::get_locales_from(process$rationale))
+        processStep$setDescription(process$description, locales = geoflow::get_locales_from(process$description))
         
         #processor as responsability party
         for(processor in process$processors){